package com.tan.controller;

import org.apache.catalina.Session;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.thymeleaf.util.StringUtils;

import javax.servlet.http.HttpSession;

@Controller
public class LoginController {
    @RequestMapping("/user/login")
    public String login(@RequestParam("username")String username,
                        @RequestParam("password")String password,
                        Model model, HttpSession session)
    {
        //具体业务
        if(!StringUtils.isEmpty(username)&&"123456".equals(password))
        {
            session.setAttribute("loginUser",username);
            return "redirect:/main.html";
        }else
        {
            //告诉用户，你登录失败了
            model.addAttribute("msg","用户名或者密码错误！");
            return "index";
        }
    }
    @RequestMapping("/user/logout")
    public String logout(HttpSession session)
    {
        session.invalidate();
        return "redirect:/";
    }
}

